body{
	margin: 0;
	padding: 0;
	font-family: "Helvetica Neue",Helvetica,STHeiTi,sans-serif;
}
h1{
	font-size: 20px;
	line-height:30px;
	font-weight:lighter;
	font-family: '黑体';
	padding-left: 15px;
}
video{
	width: 100%;
	margin-bottom: 10px;
}
article{
	padding: 10px;
	font-size: 14px;
	line-height: 24px;
	color: #666;
}